I took the engine apart, ordered some rings from Ebay, and went to reassemble it but one of the rings didn't fit. I called OldMiniBikes and talked to a great guy in tech support who actually pulled the ring set off the shelf, grabbed a caliper, and measured a ring for me to make sure it would fit my piston. It was some great customer service. Needless to say, I bought the rings from OldMiniBikes this time like I wished I would have the first time. They should be here soon and I'll have the engine up and running. Thanks Chad!!! :thumbsup: